High-Purity Silica Filament Woven Fabric from China
This is a closed woven, plain weave fabric made from silica filaments with over 93% silica content, classified under HTS 7019.63.90.30 due to its mechanical bonding and colored composition. It is designed for extreme heat environments where standard glass fibers would degrade.
Duty Rate — China → United States
44.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify silica content certification exceeds 93% via lab analysis to avoid reclassification; ensure documentation specifies plain weave and mechanical bonding; watch for customs scrutiny on 'colored' designation requiring pigment proof